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Chemistry, 22.06.2019 04:20
Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.
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Chemistry, 22.06.2019 07:30
Calculate the ratio of h+ ions to ohโ ions at a ph = 7. find the concentration of h+ ions to ohโ ions listed in table b of your student guide. then divide the h+ concentration by the ohโ concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to ohโ ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of ohโ ions at a ph = 7? mol/l what is the ratio of h+ ions to ohโ ions at a ph = 7? : 1
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Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 ร 10-4 millimeters. express each number in an alternate form.
Answers: 1
Chemistry, 22.06.2019 22:00
Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope
Answers: 1
How do the general methods for separating mixtures and compounds differ?...
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